"It is the fourth anniversary of the MH17 tragedy. We bow our heads in sorrow and pray with the families of the298 people tragically killed in a crash. A joint investigation team from the representatives of Australia, Belgium, Malaysia, the Netherlands and Ukraine found that the aircraft was shot down by the Russian air defense missile system BUK, which belonged to Russian troops and was taken from the Russian Federation. Russia must be held responsible for this terrorist act, "he wrote.

At the same time, the President stressed that Ukraine will continue to provide all necessary assistance for a professional investigation and punishing the perpetrators of the tragedy.

"In confirmation, Ukrainian parliament ratified the Agreement between Ukraine and the Netherlands on international legal cooperation regarding crimes related to the downing of the MH17 flight. The agreement regulates cooperation of the competent authorities of both states, the prosecution and conviction of the perpetrators under the judicial system of the Netherlands," he added.

Ukraine’s President believes that truth will be revealed, and justice will prevail.

As it was reported earlier, Boeing 777 of Malaysian Airlines, flight number MH17, was destroyed while performing a regular flight from the Netherlands to Malaysia in July 2014. The tragedy took place in the sky over the militant-held section of Donetsk region. All 298 people aboard deceased; most of the victims, 196, were Dutch, but there were citizens of other nine countries as well.

Previously, the Netherlands and Austria have officially condemned Russia in crashing the MH17 flight. In particular, after the investigators from the Netherlands have found confirmation that the MH17 flight had been shot by Russia.